Australia’s transport accident investigator did not think a 50,000 tonne BHP train racing driverless across the Pilbara until it was deliberately derailed warranted sending its investigators to the site of the crash.

LESS than a week after BHP was forced to derail a runaway iron ore train with no driver in the Pilbara, fellow iron ore miner Mineral Resources has revealed details of wagons going off the rails in the Goldfields.

BHP does not believe its stockpiles of iron ore at Port Hedland, in Western Australia's Pilbara region, will be sufficient to meets its contracts with customers following the deliberate derailment of an out-of-control train.

Rail safety investigators have arrived at the site of a deliberate train derailment in WA's Pilbara region, with footage revealing destroyed wagons from a runaway BHP train lying sprawled alongside the track.

Rail safety investigators arrive in WA's Pilbara region as pictures reveal the mangled wreckage of a BHP iron ore train deliberately derailed south of Port Hedland, with the clean-up expected to take a week.

A train pulling more than 200 wagons of iron ore takes off with no driver on board, travelling more than 90 kilometres across WA's remote Pilbara region in about 50 minutes before technicians in Perth can remotely derail it.

A train pulling more than 200 wagons of iron ore takes off with no driver on board, travelling more than 90 kilometres across WA's remote Pilbara region before technicians in Perth could remotely derail it.